Exercise 1

If the electric field in an EM wave in free space has a peak magnitude of8.410^-5 V/m, what is the peak magnitude of the magnetic field strength? (answer in two significant figures and T)

Exercise 2

Calculate the displacement currentI_D between the square plates, 5.4 cm on a side, of a capacitor if the electric field is changing at a rate of 2.310⁶ V/ms. (answer in two significant figures and units A)

Exercise 3

TheE field in an EM wave in free space has a peak of 20.9 mV/m.

1-What is the average rate at which this wave carries energy across unit area per unit time? answer in three significant figures on W/m²

Exercise 4

Determine the rate at which the electric field changes between the round plates of a capacitor,8.0 cmin diameter, if the plates are spaced1.5 mmapart and the voltage across them is changing at a rate of140 V/s.(answer in 2 sig.figures)

E/t=? V/m x s

Exercise 5

The amplitude of theB field of an EM wave is 2.910² T. The wave travels in free space.

1-What is the amplitude of theE field?

2-What is the average power per unit area of the EM wave? (answer in two significant figures and units)

Exercise 6

1-What is the range of wavelengths for FM radio (88MHz to 108 MHz)?

2-What is the range of wavelengths for AM radio (535kHz to 1700 kHz)?

(answers numerically separated by a comma)

Exercise 7

A high-energy pulsed laser emits a1.3-ns-longpulse of average power1.610¹¹ W.The beam is nearly a cylinder2.110³ min radius and it travels in free space.

1-Determine the energy delivered in each pulse.

2-Determine the rms value of the electric field.

(answer in two significant figures and units)